absent
Je vous emmène à travers mes vidéos découvrir mon expérience acquise depuis plus de 30 ans a silloner le globe entier à la recherche de pierres précieuses, de rencontre mémorables mais aussi de difficulté parfois …
actualités
hydroxylherderite
ck_admin
March 24, 2021
Its name honors Siegmund August Wolfgang von Herder (1776-1838) who identified it. It is found associated with herderite, besides many specimens called herderite are actually of hydroxylherderite.
hydroxyapatite
ck_admin
March 24, 2021
As for the apatite, its name derives from the Greek to indicate that the apatite has often been confused with other gems, plus the mention of “hydroxy”added . This is a major constituent of bones and teeth.There is a very dark green variety rich in
hyalophane
ck_admin
March 24, 2021
Discovered in 1855, it owes its name to the Greek “hyalos” – glass-, and “Phanos” – which has the appearance.
hornblende
ck_admin
March 24, 2021
Very common mineral, its name comes from the German “horn” horn “blenden” dazzle. There are many varieties depending on the content of iron, magnesium, calcium etc …
